83887231 has 4 divisors (see below), whose sum is σ = 88821792. Its totient is φ = 78952672.

The previous prime is 83887229. The next prime is 83887247. The reversal of 83887231 is 13278838.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 83887231 - 2¹ = 83887229 is a prime.

It is a super-2 number, since 2×83887231² = 14074135049694722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83887201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467255 + ... + 2467288.

It is an arithmetic number, because the mean of its divisors is an integer number (22205448).

Almost surely, 2^83887231 is an apocalyptic number.

83887231 is a deficient number, since it is larger than the sum of its proper divisors (4934561).

83887231 is a wasteful number, since it uses less digits than its factorization.

83887231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4934560.

The product of its digits is 64512, while the sum is 40.

The square root of 83887231 is about 9158.9972704440. The cubic root of 83887231 is about 437.7558444787.

The spelling of 83887231 in words is "eighty-three million, eight hundred eighty-seven thousand, two hundred thirty-one".